Electrical Series Terminal Functional Zone Design
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Solution Overview
Problem
Existing series terminals for mechanical engineering and industrial usage are costly and require significant installation space, limiting their applicability due to their large size and high cost.
Innovation Solution
An electrical series terminal with a compact design featuring a functional zone that selectively and alternately receives various functional elements, connected via current bars to functional contacts, and equipped with two connecting shafts on each side for diverse operations, allowing for reduced size and cost while maintaining functional diversity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional test disconnect terminals with longitudinal isolating switches and multiple connecting shafts are used, then functional diversity and circuit breaking reliability are improved, but installation space and cost increase significantly
Solution Approach 1:
The series terminal is designed with a functional zone that can selectively receive different functional elements (test connectors, pick-off terminals, cross bridges) to perform multiple functions. The terminal block serves as a universal platform that adapts to various operational needs through interchangeable functional elements, eliminating the need for separate dedicated terminals for each function.
Solution Approach 2:
The terminal is divided into distinct functional zones: a first connecting portion for main connections, a second connecting portion for additional connections, and a central functional zone for interchangeable elements. This segmentation allows each zone to be optimized independently, reducing overall space requirements while maintaining functional capabilities.
2Reliability
If traditional test disconnect terminals with longitudinal isolating switches are used, then circuit breaking reliability is improved, but device complexity and cost increase
Solution Approach 1:
The longitudinal isolating switch mechanism is extracted and replaced by a simpler functional zone design where circuit breaking is achieved through the selective insertion and removal of functional elements. The functional zone can be configured to provide reliable circuit breaking without requiring complex pivotally received switches, thereby reducing device complexity while maintaining reliability.
3Adaptability or versatility
If traditional test disconnect terminals with three connecting shafts on each side are used, then functional diversity is improved, but installation space and cost increase
Solution Approach 1:
The terminal block serves as a universal platform with a functional zone that can accommodate different functional elements (test connectors, pick-off terminals, cross bridges). This multi-functional design allows the same terminal structure to support various operational requirements without requiring separate dedicated terminals for each function, thereby reducing overall system complexity.
Solution Approach 2:
Multiple functional capabilities are merged into a single terminal device. The first and second connecting portions, along with the functional zone, are combined to provide circuit breaking, testing, and potential equalization functions in one integrated unit, reducing the need for multiple separate terminals and associated complexity.
Data Source
AI summary
An electrical series terminal includes a first connecting portion which is connected via a first associate current bar to a first functional contact and a second connection portion being connected via a second associate current bar to a second functional contact. A functional zone is provided between the first connection portion and the second connection portion. The functional zone is configured to selectively and alternately receive and contact a plurality of functional elements such that when at least one functional element is introduced to the functional zone, the at least one functional element can be connected to the first and second functional contact. On the sides of the functional zone, a first and second connecting shaft are provided on the first and second connection sections.